Wrapping machine



F. HEATH.

WRAPPING MACHINE.

l APPLICATION FILED NOV. 26,1920. p. Patente Juy E8, i922..

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F. HEATH.

WRAPPING MACHINE.

l APPLICATION FILED NOVl 26, I920. 1949392@ Patented July 18,1922'.

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Figo 5 E@ BZ? F, HEATH.

WRAPPING MAcHxNE.

APPLICATION FILED NOV. 26| i920. Lgpz, Patente. July 18, i922,

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F. HEATH.

WRAPPING MACHINE.

APPLICATION HLED Nov.2s,1920.

Patented July 18, 1922.

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F. HEATH.

WRAPPING MACHINE.

APPLICATION FILED Nov.ze. 1920.

Patented July I8, 1922.

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@MN AWN FRANCIS HEATH, 0F HUDDERSFIELD; ENGLAND, ASSIGNOR T0 THE HEATHWRAPPER COMPANY, OIE' LITTLEMUOR, MIRFIELD, ENGLAND.

WRAPPING MACHINE.

Specification of Letters Eatent.

Patented July 18, 1922.

Application filed November 26, 1920 Serial No. @26,35.

(GRANTED 'UNDER THE PROVISIONS 0F THE ACT 0F MARCH 3, 1921, 4:1 SIAE.L., 1313.)

T 0 all whom it may concern;

Be it known that I, FRANCIS HEATH, a subject of King George V of GreatBritain, residin at Huddersfield, in the county of York, ngland, haveinvented a new and useful Improvement in Wrapping Machines (for which Ihave filed an application for patent in England on March 1, 1919, No.139,610), of which the following is a specication.

rIhis invention has reference to the wrapping of caramels, sweetmeats,bars of soap or the like in paper or foil, and comprises improvedautomatic or. self-acting means for feeding and cutting the paper to theproper length, feeding a caramel block or bar forward thereto and to beembraced within the folded length of paper and then carried for- Wardinto the path of gripping jaws which are timed to seize upon the ends ofpaper projecting beyond each edge of the caramel and to twist same. oralternatively instead of jaws for twisting the projecting ends of paper,lingers may be provided for folding the paper on three sides at eachend, the last or fourth side being folded over by suitable guides as thewrapped caramel block or bar is moved forward to the point of dischargefrom the machine, each operation being appropriately timed so that theseveral motions operate synchronously to effect the complete wrap-pingof each caramel block or bar as it is fed through the machine. In theaccompanying drawings, to which reference will hereinafter be made Fig.v1 is a side elevation of a machine embodying my invention;

Figs. 2, 3 and 4 are enlarged side elevations partly in section of theblank feeding device, and illustrate respectively different stages ofthe feeding operation, as will be described later;

Fig. 5 is a front view of the paper feeding and cutting devices; j

Fig. 6 is a section taken on line A, B Fig. 5; 4

Fig. 7 is a plan View of the machine; and Fig. 7 a is a plan view of afew parts at the upper part of Figi 7, certain of which are not shown inFig. 7 for lack of space.

Figs. 8, 9 and 10 are cross sectional views of the conveyer device, andillustrate respectively different stages of the conveying operations, aswill be described later;

Figs. 11, 12 and 13 are elevations of the gripping jaws, and some oftheir operative parts and illustrate respectively different stages ofthe operation of gripping and twisting up the ends of paper on a blank;

Fig. let is a front` View of the folding mechanism;

`Figs. 15, 16 and 17 are also front views of the folding mechanism andillustrate different stages of the folding operation;

Fig. 18 is a side elevation of the folding mechanism;

Fig. 19 is an end View of a part of the folding mechanism, looking inthe direction of the arrow D, Fig. 1 8.

The mechanism forming my new or improved machine may be said to comprisefour groups, namely (1) mechanism for feeding in the caramels,sweetmeats or other articles which for the sake of description I shallrefer toas the blanks; (2) paper feeding and cutting mechanism; what Iterm conveying mechanism which conveys the blanks along with theindividual or severed portions of paper in which they are to be wrapped,into position to be operated on by the twisting or folding mechanism,and (4) mechanism for twisting up the ends of the aper projecting beyondeach edge of the blan( or alternatively, mechanism for folding theprojecting ends of paper.

I will first describe the blank feeding mechanism. This comprises asuitable feed guide-way. as for instance a trough 1 in or along thebottom of which runs an endless belt or travelling apron 2 passingaround suitably supported rollers 3 and 4. The belt or apron 2 may bedriven in any convenient manner, as for instance by means of a bevel 5on the axis of the roller 4, the said bevel 5 meshing with a bevel 6, onthe axis 7 of which is a pulley 8 driven by band 9 from a pulley 10 faston the main driving shaft 11 of the machine. An intermittent drive mayif preferred or found more convenient, be given to the feed belt 2instead of the continuous drive imparted by the mechanism justdescribed.

rThe feed guide trough 1 is disposed.v at4 right angles, see Fig. 7, toa main feed guide 12 in which is located, and adapted to be slidendwise, a pusher or plunger 13 actuated through a lever 17 andconnection 18 from a cam or eccentric motion, not shown, on the drivingshaft 11 of the machine. Mounted above the pusher 13, and capable ofindependent longitudinal movement, is a Second slide 16 actuated by alever 14 and connection 15 from a second cam or eccentric motion, alsonot shown, on the driving shaft 11.

The pusher or plunger 13 carries, at its front end, a wedge shaped orinclined members 19, 19 located one on each side of the main guide-way,and between such members 19, 19 is located a pivotally mounted yieldingor flexible bent finger 20. The action later.

The upper or main slide 16 has on its upper side a shoulder 21 formed atan appropriate point in its length, with which shoulder is adapted toengage, at the proper time, a finger 22 pivoted at one'end at 23 to themain guide framing.. A suitable spring 24 acting on the upper side ofthe finger 22 tends to force it down into position to en-` gage with theshoulder 21, and a connectipi'i 25 from a lever 26 pivoted intermediateits ends and acted upon by a pin 14a on the lever 17 serves. to raisethe free end of the linger 22 above the path of the shoulder 21 as shownin Figs. 2 and 3.

The construction of the paper feeding. and cutting mechanism will now bedescribed. A vertically movable rod `or bar 27 has a toothed portion 28with which\ engage toothed pinions 29, 29. 'These pinions throughpivoted pawls 30, 30 engaging ratchets 31, 31 on respective shafts 32,32 are adapted to drive said shaftswin one direction of movement of thebar 27 that is to say-when the said bar is moved in a downwarddirection. During upward movement of the bar, thev pawls 30, 30 rideidly over' the teeth of the ratcliets 31, 31 and leave the shafts 32, 32at rest, as will be understood. The shafts 32, 32 carry feed rollers 33,33 which are grooved, see Figs. 5 and 6, to permit of vertical movementbetween them of a series of vertical guide-wires 34 carried by acrosshead or frame 35 attached to the bar 27. y

The wrapping paper strip 36, unwound from a roller the like supported inany suitable m'anner and position on or in proximity to the machine, isled over a bar 37 and passed or threaded between the guide wires 34 soas to be loosely held in extended condition and is then passed through'the nip of the feed rollers 33, 33. Suitable guide channels 38, 38receive and guide the edges of the paper strip.

Located'in suitable position beneath the bers 39 and 40 which are of theparts 19 and 20 will be described Th guide rollers are respective fixedand movable cutter blades 39 and 40. The movable blade 40 is actuated atthe required time by a lever 41 operated by a connection, not shown,from a swinging frame 42 moved by a cam 43 on the driving shaft 11.

Intermittent vertical movements are imparted to the bar 27 by lever 44,see Fig. 1, acted upon by cam 45 on the driving shaft which cam acts todraw down the said bar, whilst a cam 46l acting upon thellever 44through lever 47 and upward movement to the bar.

Downward movement of the bar 27 causes the feed rollers 33, 33 to ull onthe paper strip and feed down a pre etermined'length between the xed andmovable cutting memat this time open. e cross-head 35 carrying the guidewires 34 being attached to the bar 27, the said wires move down in thegrooves in the feed rollers and deliver the paper between the cuttingmembers in properly extended condition..

Qn the bar 27 being moved upwardly, the guide. wires are retracted orcarried back to their original raised position but, through the idlemovement of the pawls 30 overthe ratchets 31, the feed rollers remain atrest so that the length of paper carried down by lthe previous rotationof the feedrollers is left 4in p osition between the fixed and movabledisTc1 are engaged by holding pawls 50, 50. shaft 51 adapted to beintermittently rotated to the extent of half a revolution at therequired time by means of bevels 52, 53 shaft 54, pegs 55 on said shaft54, and star wheel device 55?l on the driving shaftl 11.

The shaft 51 carries a frame 56, on rods 57 57 in which are fast theinner ends of pairs of arms 58, 58. Also mounted on the rods 57, 57 butloosely, are the inner ends of pairs of levers 59, 59. The outer ends ofthe pairs of arms, 58, 58 are connected by rods orrollers 60, 60 and theouter ends of the pairs of levers 59, 59 are connected by rods orrollers 61, 61.

Working through an opening 62 in an enlargement on the shaft 51 is a pinor rod 63 or preferably two openings and rods spaced at suitableintervals apart are employed and each end of the rod or rods 63 carriesa cross bar 64 or 65.

Encircling the rods 57, 60 and 61 is an endless belt or sheet 66 whichis suitably clamped to the respective cross bars 64 and 65. The lengthof the rod or rods 63 is or are such that when one crossbar is presentedto the exterior of the device, that is to s ay shafts 32, 32 the teethof which link 48 gives a quick e conveying mechanism comprises a betweenone pair of cross rods 60I andl, as shown for instance on the left inFlg. 8,

I sheet 66 to form, along with the other pair of cross lrods 60and 61 ajaw or pocket, as shown on the right of Fig. 8. The pivoted levers 59are pressed upon near their free ends by suitable springs 67, 67 (Fig. 7which cause each pair of cross rods 60 and 61, in combination with theendless sheet V66, toV form al spring jaw. If desired the arms 58 couldalso be pivoted andspring pressed inwardly in the same manner as thelevers 59. Mounted on cross rods 68, 69 aboveand below the shaft 51 arerespective partly-circular metal plates 70 and 71 which are adapted asthe device is-rotated through its half revolution at each operation toform closures for the inlet end of a rear or delivery guideway 72located at the' opposite side of the conveyer device in alignment withthe main guideway 12.

Suitable fixed stops 73 and 74 are provided to engage the projectingends of the cross-bars 64 and 65 and serve rto accurately position theconveyer device, after each actuation or half rotation, in correctalignment opposite the feed and delivery guideways.

A crossbar 75, supported and movable vertically in brackets 76 and 77(Figs. 2, 3, 4 and 5) occupies a position immediately in front of theconveyer device. As the pusher 13 comes forward the bar 75 is moved up`out of the way by the wedge-shaped members 19 of the pusher 13, or bythe finger 20 when used, which engages with its lower edge, as shown inFig. 3, and on said pusher withdrawing, the bar drops down on to theslide 16 and forms a scraper for the end of same. The bar also serves toprevent the blank from being withdrawn from the conveyer by the rearwardmovement of the slide 16 in the possible event of the blank adherin tothe end of the said slide.

Tt will be obviousthat the conveyor device might if desired be arrangedto revolve about a vertical axis instead of about a horizontal axisas'above shown and described.

Coming now to the fourth group of mechanism namely that for twisting upthe ends of paper projecting beyond the edges of a blank after the paperhas been placed in position around same in the manner which will bedescribed later, or alternatively for folding down the projecting endsof paper over the blank instead of twisting the said ends, I will firstdescribe the twisting mechanism.

This comprises pairs of gripping jaws 78, 78 and 79, 79 each pair ofwhich is pivotally carried by a shaft 80 capable of being slidedlaterally in bearings 81, 82. Slidable on each shaft 80 ls a jawpositioxier 83 having spring members 84, 84 adaptedto bear I on theedges of the jaw levers and cross bars or'V loops 85 of'any approvedconstruction adapted when the jaw positioners are in a certain position,as for instance, that shown at Fig. 11, to bear against the tails 78aand 7 9a of the jaw levers and hold the jaws open. Between collars 83aon each jaw positioner is mounted a boss 86 having slotted projections87, inthe sl'ots of which work fingers 88 of levers 89 pivoted at 90 andhaving ktheir other arms slotted at 91 to receive fingers 92 projectingfrom a shaft 93.

Movement of the levers 89 on their pivots in one direction causes thejawpositioners to move inwards from the position shown in Fig. 11 to thatshown in Fig. 12, the effect of which movement is to cause the jaws tobe closed by reason of. the spring members 84, 84 bearing on the jawlevers and rocking them on their pivots.

`urther movement of the levers 89 on their pivots now results -in theshafts 80 being bodily slid endwise in their bearings in an inwarddirection, that is to say from the position shown at Fig. 12 to thatshown at Fig. 13. This inward movement of the shafts is provided tocompensate for the shortening of the projecting ends of paper whichbetween the position shown at Fig. 12 and that of Fig. 13, have beentwisted up bythe rotation of the shafts 80 and consequently of thegripping jaws, such rotation being effected by means of pulleys 94,

`97 to which rotation is imparted by means of a friction disc 98 actedupon at the proper time by a friction surface 99 on a wheel 100 on thedriving shaft l1. One band 95 is open and the other crossed, so as tocause the two pairs of jaws to be rotated in opposite directions.

The rocking of the levers 89 on their pivots to effect the inwardmovement of the jaw positioners to close the jaws, and the Subsequentinward movementI of the shafts 80 Itol carry the jaws nearer to theblank toi compensate for the shortening of the twisted ends of paper iseffected as follows The shaft 93 carrying the actuating fingers 92 forthe levers 89, has fast upon it an arm or finger 101 which is adapted tobe enga-ged at the proper time by a pin- 102 on a disc. 103 on thedriving shaft. This pin 102 effects the closing of the jaws, and thesubsequent inwarot movement of the shafts 80 is effected by a. cam 104which engages and gradually raises the larm or finger 101 still furtherbeyond the oint to which it has been swung by the p1n 102, thusgradually rocking the shaft 93 and, through the connections, bringingabout the effect desired. Outward movement of the shafts 80, and therestoration of the jaw positioners to normal iso l osition to again openthe'gri pin jaws, ins effected by a pin 104'l on t e digo 103,

winch enga ls an arm or 'finger 105 on the shaft 93 andtbrocks it in thereverse direction to that in which it was moved b-y the action of' thepin 102 and cam 104 on the arm or finger 101.

Iii order to retain the shafts 8() in their outward positions until thecommencement of the twisting operation calls for their inward movementeach. shaft is provided with. a finger 106 whichy is adapted to beengaged by a finger 107 fast on a shaft 108, the said fingers 107normally occupying the position shown in Fig. '7, that is to say, beingon the inner sides of' the fingers 106. They are heidi in this positionby the engagement with an arm 109 on the shaft 108 of a cam 110 on thewheel 100 or of a pin 111 on said wheel. A spring, not shown, acts torock the shaft 108 in a direction to carry the fingers 107 away from theshafts 80 When neither the cam 110 or the pin 111 is presented beneaththe arm 109. The cam 110 serves to move the fingers 107 into operativeposition Whilst the shafts are in their outward positions. Then itleaves the arm 109 the fingers 107 are moved away by the springmentioned, to permit the `shafts to move inwardly, the angle to whichthe said-fingers 107 are moved' being such that the fingers 106 canrotate clear of' them durin the twisting operation. When the rotation ofthe shafts 80 ceases, on the twisting being completed, the pin 111 actson the arm 109 andi causes the fingers 107 to be moved into operativeposition for a short time. Since the fingers 106 are at this timeopposite to the fingers 107 owing to the inward movement` of the shafts80, the movement into operative position of the fingers 107 serves tobring the shafts 80 to rest with the gripping jaws in vertical alignmentready for the next closing operation. This having been done, the fingers107 are permitted to move out to inoperative position to permit theshafts 80 to move outwardly to normal position, when the cam 110 againacts to restore the fingers 107 to the position shown in F ig. 7.

The delivery guide 72 is carried by a saddle 72a pivoted at 7 2b to themachine frame, so that the said delivery guide can if necessary pivot inan upward direction to ensure correct alignment of the blank withrespect to the axis of the grip-ping or twisting jaws.

The mechanism for folding the ends of paper projecting beyond the edgesof the blank, and which may be employed instead of the gripping jaws andtwisting'mecha-v msm just described, is constructed as fol lows Mountedabove the inlet end of the rear or delivery guid'eway 72 are a. pair offingers 113, 113 pivoted together at 114 and capableo-f being raised andlowered vertically by fingers 115, 115 attached to or forming part of ahorizontally disposed lever 11.0 pivoted at 117. The opposite end of thesaid lever 116 is connected by link 118 to an arm 119 on a shaft 120,which takes the place of the shaft 97 in the ltwisting mechanism.

The upper ends of the fingers 113 are provided with projections 121, 121which, as the said fingers are lowered, are adapted to engage a fixedsurface 122, mounted on the top of the upper portion of the guideway 72,as shown in Fig. 14, and cause the said| ngers to be rocked on theirpivot, with the result that their lower ends move inwardly. During thelowering of the fingers their'lower ends come into contact with theupper portions of' the paper projecting beyond the ends of the blank, sothat as the fingers are rocked as above stated, the said upperprojecting portions of paper are engaged and folded inwardly against theends of the blank, as will be understood by reference to Figs. 14 and15.

Mounted on a shaft 123 supported in suitable bearings beneath themachine and driven by suitable means from the driving shaft 11 is aneccentric -124 the strap of which carries two fingers 126, 126 whichproject up through a slot 12.7 in a suitably disposed fixed member 128.These fingers 126 are located one on either side of the delivery guideand are adapted under theaction of the eccentric 124 and of the slottedmember 128, to engage and fold back the front sides of the projectingends of paper. A pair of wipers 129, 129 mounted on a spindle 130 andlocated one on either side of the guideway 72 in rear of the fingers 113and 126 are adapted on rockingl of their spindle to come forward andfold down the rear sides of the projecting portions of paper. Movementis imparted to the spindle 130 through arm 131, connection 132, and arm133 from a rock shaft 134. This shaft hasfast upon it an arm 135 adaptedto be acted upon by a projection 136 on a disc 137 on the driving shaft11 to rock the said shaft in one'direction and an arm 138 adapted to beengaged by a projection 139 on the disc 137 to rock the shaft in theopposite direction.

The action of the fingers 113 and 126, and of the wipers 129 results inthe folded ends of paper being left projecting downwardly as will beunderstood from Figs. 16 and 17. In order to complete the foldingoperation by bending these projecting folded ends up against the ends ofthe blank, the said folded ends, as the blank is moved rearwardly alongthe delivery guide-way by fresh blanks being presented to the foldingmechanism, are caused to pass between horizontal plates 140, 140 onepair bein provided at each side of the guideway. T e front edges 141 ofthe lower raise the folded aps or ends from "the vertical position inwhich they are left by the lates are cam shaped and' i wipers 129 ifltoa horizontal position.- As

' the plates 14 the blank pa ses clear of the rear ends of thehorizontally extending folded flaps cig ends are engaged by pivotedmembers such as 142 one at each side of the guideway and are folded upagainst theends of the blank. Motion is imparted to the members 142through links such as 143, from a lever 144 pivoted at 145 to a fixedlbracket 146 and acted upon bya roller 147 carried by an arm -148 on therock shaft 120. The shaft 120 may be actuated by the engagement with anarm 149 thereon of a suitable cam on the driving shaft 11 or in anyother convenient manner.

The paper is now completely folded about the blank but in order to givea finished appearance to the folded up ends of paper, at the ends of theblank, I provide a pair of spring plates 150, 150 located one on eachside of the rear end of the delivery guide. These plates 150 are adaptedto be swung upwardly on their pivots by a connection 151 from a lever152 acted upon by a suitable camon the driving shaft 11, and in theirupward movement they rub against the folded up ends and by such upwardrubbing pressure exerted on the blanks give a nice square finish to thefold.

The action of the machine is as follows The unwrapped blanks are fed byhand or by any suitable mechanical device into the trough 1 and arecarried forward by the travelling apron '2 toward the main guideway 12.

The pusher 13 is caused by its actuating cam to move toward theconveying device, and as the said pusher with its inclined or wedgeshaped members 19, 19 arrives at the paper (a predetermined length ofwhich has ben fed down past the cutters during the previous cycle ofoperations of the machine) the latter is severed by the cutters.

As the pusher 13 with its inclined or wedge shaped members 19, 19arrives at the paper, the predetermined lengthof the latter is severedby the cutters and is carried by the members 19, 19 against the crossbar 64 or 65 of the conveyor device, whichever may happen at the momentto be presented at the inlet side of the device. The engagement of themembers 19, 19 with the crossbar concerned moves it from the positionshown on the left of Fig. 8, to that shown on the left in Fig. 9. thismovement causing the endless belt or sheet 66 with its cooperating pairof cross rods 60, 61 to form a pocket for the reception of the blank.The upper surfaces of the members 19, 19 being inclined, the rod 61carried by the spring pressed levers 59 will if necessary be raised toprovide a j aw or pocket of sufficient depth to receive the blank.

Meantime a blank has passed from the feed trough into the mainguideway12 and The position of the feed mechanism is i now that shown at Fig. 3.

The forward movementof the pusher 13. y v.

by reason of the pin 14a on its operating lever 17 having moved clear ofthe lever 26 has allowed the forward end of the latter to drop and thuscause the free end of the finger 22 to drop down into a position toengage the shoulder 21 on the slide 16.

The blank having been fed into the conveying device along with itsportion of` wrapping paper the pusher 13 commences to move backwards.The upper slide 16, however, by reason of the engagement of the finger22 with the shoulder 21 is held for a short time in a slightly withdrawnposition, as shown at Fig. 4, to guard against accidental withdrawal ofthe blank as the pusher commences to move back. On the arrival of thepusher 13 at its rearward position the finger 22 is, by the connectionsdescribed, raised clear of the shoulder 21 and the slide 16 completesits movement back to its original position. The position of the blank inthe conveyor at this stage is shown at Fig. 9. The members 22, 23, 24and 25 are provided to prevent the withdrawal of a blank which may stickto the end of the plunger 13 which is moved backwardly in advance of thebackward movement of the slide 16.,

During the backward movement of the slides 13 and 16 the paper feedlmechanism operates to carry down the end of the paper strip apredetermined distance below the cutting members where it is left by theguide wires which are carried back by the upward movement of the bar 27to their raised position clear of the cutters.

The movement of the cross bar 64 or 65 by the pusher 13 as the lattercame forward carried the projecting ends of the crossbars clear of thefixed positioning stops 73 and 74 leaving the conveying device free tobe rotated. As soon, therefore, as the pusher 13 and slide 16 havewithdrawn, a half revolution is given to the conveying device by itsdriving mechanism in the direction of the arrow C Fig. 9, thus carryingthe blank which has been placed therein from its position opposite thefeed guideway 1,2 into a position opposite the delivery guideway 72 asshown at Fig. 10.

This ,half revolution of the conveyor` prev sents vthe other crossbai`opposite the feed 4 wrapped on three sides by the act of inser-\Qessivepasses from the conveyor into the delivery l delivery guideway 72.

guideway and the feeding operation' is repeated. The placing of thesecond. blank in the conveyor results in the first blank being expelledtherefrom as will be understood from an examination of Figs. 8 to 10 andsuch first blank moves The length of the severed piece of paper and itsposition as it is carried into the conveyor by the pusher 13, is suchthat-as the blank is placed into the conveyor it is tion whilst` asuficient portion of paper is left projecting at the upper side of thepocket to vcover the fourth side. Durmg the half revolution of theconveyor just de.-

scribed, the projecting portion of paper re' 'ferred to is wiped orfolded down by an 1nclined plate 112 so that when the blank guideway itis wrapped on all 'four sides and the portions of paper projectingbeyond its ends are ready to be twisted or to be folded as the case maybe,

` I will assume first that they are to be twisted.

On the arrival of the vblank in the delivery guideway the gripping jaws78, 79 are closed irrthe manner already described, theA shaft 80carrying them beingA meantime 'held from endwisel movement. As soon asthe jaws have closed .upon the portions of the wrapping paper projectingbeyond the ends ofthe blank the friction surface 99 comes into actionand, through the friction disc 98 and driving connections from the shaft97, commences to revolve the shafts 80 and the gripping jaws to twist upthe gripped projecting ends of the wrapping paper. Simultaneously withthe commencement of the -twisting operation the cam 104 comes intoaction and as before described causes the shafts 80, 80 to be slidinwardly to gradually carry the jaws closer to the blank as theprojecting ends of paper shorten. On completion of the twistingoperationV the the shafts 80, 80 moved back to their original outwardpositionsready for the -neXt gripping and twisting operation.

During ythe time the twisting operation just described has beenproceeding the paper feeding and blank feedingmechanisms have againcommenced to operate, and as soon as the gripping jaws have opened athird blank is placed in the. conveyor. This causes the second blank tomove from the conveyor` into the delivery feed guide and the nowycompletely 'wrapped and twisted along the delivery guideway towards theoutlet end thereof.

The cycle of operations described is repeated and co-ntinues so long asa supply of blanks is present .in the feed trough 1,-and

out into the gripping jaws are opened, andwhen, the supply ceases, thelast presented blank will be operated on the machine completely em tied.

If, instead of bein l fitte with the twisting mechanism descr-1 ed, themachine is Aarranged to fold down the portions of paper projectingbeyond the ends of the blank, then upon movement of a wrapped blank fromthe conveyor into the delivery guideway the fingers 113 are operated'tofold in the upper projecting portions of paper and the fingers 126andwip'ers 129 operate sucy to fold thefront and rear side portions.wThe blank, is then moved by the pressureof incoming blanks along thedelivery v guide the folded'ends being raised from the by cam shaped orand wrapped and I against the ends of the/blank and nallyethe Afolded-and bent up ends are rubbed squareand neat by the plates 150. Ifdesired a second and narrower strip of paper may be fed to the machinealong with the ordinary wrapping paper to provide a band or open-endedcovering, the meeting edges of said ban-d when folded being secured byan adherent substance in known manner.

It will be obvious that the details of construction of my machine may bealtered and varied in manyways without departing from or exceeding thescope of my invention. Having thus described my invention, what I claimas new and desire to secureby Letters Patent 'is:-

l. In a wrapping machine, a conveyer for A the blanks, aguide arrangedcrosswise of the conveyer, a pusher slidable in the Said guide under the-conveyer and having a positioning device at its front end, a slidearranged above the conveyer and adapted to push a blank ofi' it intoengagement with the said positioning device, and means for sliding thepusher and the slide vindependently of each other. y

2. In a wrapping machine, aconveyer for the blanks, a guide arrangedcrosswise of the conveyer, a pusher slidablein the said guide under theconveyer and having wedgeshaped positioning members at its front end, apivoted positioning finger for-holding a blank between the wedge-shapedmembers, a slide arranged above the said conveyer and adapted to push ablank off it into engagement with the said finger and wedge-shapedmembers, and means for sliding the pusher and the slide independently ofeach other.

(Sli

the slide independently of each other, and-a vertically movable scraperfor the front end portion of the slide, said scra er b elng raised andlowered by the Said posltlonlng device.-

4. In a. wrapping machine, a ho r1zontally arranged pusher having apositiomng device for a blank at its front end, a slide arranged overthe pusher and adapted to place a blank into engagement with thepositionlng device, meansA for sliding tne pusher and the slideindependently of each other, a. stop whlch engages positively with thesald sllde and prevents its premature backward movement, and meansfor'disengaging the said stop from the slide periodically.

5. In a wra ping machine, a pair of grooved feed ro lers for thewrapping material, vertically slidable wire guldes for the wrappingmate-rial which slide 1n the grooves of the said rollers, means forrevolvin the pair of rollers intermittently to fee the wrapping materialfrom the. wire guides, means. for raising the wire guides whlle the feedrollers are stationary, cutters operating to sever the wrapping materialwhen the Wire guides are raised, and a reciprocating pusher arrangedbelow the cutters.

6. In a wrapping machlne, a slidable pusher; a wrapping and conveyingdevice adapted to receive a blank and a sheet of wrapping material fromthe pusher, said device comprising a :revoluble frame, an endless apronsupported by the frame, crossbars secured tothe end portions of theapron and operatively connected together, and means for revolving theframe interm1ttently to place the said crossbars alternately in,the pathof the pusher, the crossbar for the time bein on the inlet side of thedevlce being adapte to form a pocket in the apron in which the blank ispositioned by the pusher, and the other crossbarbeing adapted to ejectthe previously inserted blank.

'7. In a wrapping machine, a slidable pusher; a wrapping and conveyingdevice adapted to receive a blank and a sheet of wrapping material fromthe pusher, sa1d device comprising a revoluble frame, an endless apronsupported by the frame, crossbars secured to the end portions of theapron and operatively connected together, means for revolving the frameintermittently to place the said crosszbars alternately in the path ofthe pusher, the crossbar for thetime being on the inlet side of thedevice being adapted to form a pocket in the apron in which the blank ispositioned by the pusher; and a stationary plate arranged tangentiallyof the wrapping and conveying device and operating to wrap the wrappingmaterial over the fourth side of the blank while the said device isbeing partially revolved.

8. In a wrapplng machine, a slidable pusher; a wrapping and conveyingdevice adapted to receive a blank-and a sheet of 'operatively connectedtogether, .and means for revolving the frame intermittently to place thesaid crossbars alternately in the path of the pusher, the crossbar andarms for the time being on the inlet side of the device being adapted toform a. laterally yielding pocket in the apron in which the blank ispositioned by the pusher.

9. In a wrapping machine, a slidable pusher; a wrapping and conveyingdevice adapted to receive a blank Vand a sheet of wrapping materialsimultaneously from the pusher, said device comprising a shaft having anopening crosswise of its axis, a frame secured on the said shaft,crossbars arranged on opposite sides /of the said shaft, a coupling-rodsecured to the crossbars and slidable in the opening in the said shaft,an endless apron having its end portions secured to the said crossbarsand having its intermediate portions slidably supported by the saidframe and adapted to form a receiving pocket for the blank and thewrapping material on the inlet side of the device when the crossbars andcoupling-rod are slid forwardly by the`pusher, and means for revolvingthe said shaft intermittently to place the crossbars alternately in thepath of the pusher.

10. In a wrapping machine, a slidabl pusher; a wrapping and conveyingdevice adapted to receive a blank and a sheet of wrapping material fromthe pusher, said device comprising a revoluble frame and an endlessapron supported thereby and forming a pocket in which the blank ispositioned by the pusher, means for partially revolving the said deviceto convey the partially wrapped blank from one side of it to the other,means for wrapping the fourth side of the blank while the said device isbeing partially revolved, a delivery guideway into.

which a wrapped blank is forced by the forward movement of the pusher,and means for closing the wrapping material over the ends of the blankwhile same is supported by the said guideway.

11. In a wrapping machine, means for folding t-he ends of a portion ofstrip wrapper about a blank, comprising a delivery guide into which thewrapped blank is fed, a pivoted lever above said guide carrying a pairof pivotally connected fingers adapted to have a downward and inwardmovement to engage and fold inwardly the upper projecting portions ofthe wrapper, a pair of fingers located one on each side of the deliveryguide and operated by an eccentric in massaathe guideway, andthepair ofpivoted memi bers one on each side of the ideway acting to raise andfold up t e said flaps against the ends of the blank, all substantiallyas shewn and described.

12. The combination with mechanism according torclaim 11, of a pair ofpivoted 15 plates 15G/'one on each side of the delivery uide, suchplates having inclined spring aces adapted as the said plates are swungupwardly on their pivot to gradually put pressure on the ends of thefolded blank, 20`

substantially as and for the purpose shewn and set forth. X

In testimony whereof I a-flix my signature 1n the presence of twowitnesses.

A p FRANCIS HEATH.

Witnesses:

FRANK LEWIN, MARY BARRON.

